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    pageEncoding="UTF-8"%>
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<html>
<head>
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<jsp:include page="../common/bootstrap_knockout.jsp"></jsp:include>
<title>button exercise</title>
</head>
<body>
 <br>
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 <img alt="" src="/demo/images/download.png" class="img-rounded">
 <img alt="" src="/demo/images/download.png" class="img-circle">
 <img alt="" src="/demo/images/download.png" class="img-thumbnail">

 <img alt="" src="/demo/images/download.png" class="img-responsive">
</body>
</html>